A drum brake with long service life and good safety performance

A technology with safe performance and longevity, applied to drum brakes. It can solve the problems affecting the braking performance and service life, unevenness and wear of drum brakes, and achieve the effect of guaranteeing braking performance, uniform wear and good safety performance.

CN110360246BActive Publication Date: 2020-11-27江苏德润光电科技有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-11-27

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Abstract

The invention relates to the technical field of automobile braking, and discloses a novel drum brake with high service life and good safety performance. The novel drum brake comprises a chassis, wherein an insertion shaft opening is formed in the front surface of the chassis, eight fixing holes are formed in the front surface of the chassis and located outside the insertion shaft opening, and limiting plates which are respectively positioned on the left side and the right side of the insertion shaft opening are fixedly arranged on the front surface of the bottom plate. According to the novel drum brake with high service life and good safety performance, a brake grinding piece cannot be directly pushed by a brake wheel cylinder for braking when the brake grinding piece is braked, the smalldeflection angle is generated, the inner ring of a wheel can be better adapted to the inner ring of the wheel, the brake is attached to the inner ring of the wheel, and the abrasion of the brake grinding piece is more uniform after being braked for a plurality of times, the abrasion part cannot deviate, and the service life of the brake grinding piece is prolonged; meanwhile, due to the fact thatthe brake grinding piece is more attached, the braking performance is guaranteed, and the driving safety of a driver is guaranteed; and meanwhile, the service life of the drum brake is further prolonged, and the replacement and maintenance cost of a user is reduced.
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Description

technical field

[0001] The invention relates to the technical field of automobile brakes, in particular to a drum brake with long service life and good safety performance. Background technique

[0002] Drum brakes have been used in automobiles for nearly a century, but due to their reliability and powerful braking force, drum brakes are still configured on many models today. They are fixed to the tires and rotate at the same speed. When braking Use oil pressure to push the brake shoe to contact the inner edge of the brake drum, and use the friction generated by the contact to restrain the rotation of the tire to achieve the purpose of braking. The drum brake is composed of the brake base plate, brake cylinder, brake shoe, etc. , pins, and brake drums are generally installed on the rear wheels at present. The cost of drum brakes is lower and the absolute braking force is higher. The inner surface of the brake drum of the drum brake is the position where the brake device gener...

Examples

Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see Figure 1-3, a drum brake with long service life and good safety performance, comprising a chassis 1, the front of the chassis 1 is provided with a shaft insertion port 2, and the front of the chassis 1 is provided with eight fixing holes outside the shaft insertion port 2 3. The front of the chassis 1 is fixedly installed with two limit plates 4 located on the left and right sides of the shaft insertion port 2. The front of the chassis 1 is fixed w...